Coro e Orchestra del Teatro alla Scala, Milano
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae8cde510f317c1c882223057ecc1be5206678a129a22c53e64264600409628. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f521a451-5b30-493a-97ec-defe9b4c1eb3.json and https://artists.proofprofile.net/proofs/artist/f521a451-5b30-493a-97ec-defe9b4c1eb3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Bohème, SC 67, Act I: Sì. Mi chiamano Mimì (Mimì, Rodolfo)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4dd456fd1ae0dcf289cfbc551e0b14523bafeb06580c62f127a30e37407a65. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITD008700057.
Bellini: Norma, Act 1 Scene 2: No. 2b, Cavatina, "Meco all'altar di Venere" (Pollione)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29137a5807a88b6157334e4cd9210f12cd1935cd264cd3201800e886c03235ee. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8904395.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Donizetti: L'elisir d'amore, Act 1 Scene 3: No. 2, Scena e Duetto, "Chiedi all'aura lusinghiera … Per guarir da tal pazzia" (Adina, Nemorino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b35edfb8b155b78464ff631b387d21a740734453003449bcb73872ddcc7f8c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9301281.
Rossini: L'italiana in Algeri: Sinfonia (Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286db0d7a478575de87f02eb3058bc6ef4de25d4787230cf2f9cc91c372cbe14. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9103814.
Rossini: L'italiana in Algeri, Act 1, Scene 1, Introduzione: Serenate il mesto ciglio (Coro/Elvira/Zulma)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f9ab6eb88b862f83821471d559f8ed20b24b242f98661c7130c06ad0b5df94. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9103818.
Rossini: L'italiana in Algeri, Act 1, Scene 1, Introduzione: Su: corragio, o mia signora (Haly/Zulma/Elvira/Coro/Mustafà)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e0ac1f33a43b9a95e6a012edad786c6bb8dcd0566fecee4ab056c765720aef. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9103820.